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NiCuSSe/NF electrode, and preparation method and application thereof

An electrode, CH4N2S technology, applied in the field of electrocatalytic hydrogen evolution

Active Publication Date: 2020-10-23
SHANGLUO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are few studies on the application of transition metal selenides in the field of electrocatalytic hydrogen evolution

Method used

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  • NiCuSSe/NF electrode, and preparation method and application thereof
  • NiCuSSe/NF electrode, and preparation method and application thereof
  • NiCuSSe/NF electrode, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A preparation method of NiCuSSe / NF electrode, comprising the following steps:

[0044] S1, prepare a NiCu / NF substrate whose size is: length 2.0cm×width 2.0cm×thickness 0.5mm;

[0045] S2, the preparation concentration is 3mmol L -1 CH 4 N 2 S solution and a concentration of 3mmol L -1 Na 2 SeO 3 solution;

[0046] S3, CH configured with S2 4 N 2 S solution and Na 2 SeO 3 The solution was mixed at a volume ratio of 1:1 to obtain a mixed loading precursor solution, which was transferred to a hydrothermal reactor, and the filling volume was controlled to be 80%; then the NiCu / NF substrate prepared in S1 was put into it, sealed with water The thermal reaction kettle is used for hydrothermal reaction at a reaction temperature of 120 ° C. The hydrothermal reaction time is 18 hours. After the reaction is completed, the substrate after the reaction is taken out, washed with water, washed with alcohol, and dried in sequence to obtain a NiCuSSe / NF electrode. .

Embodiment 2

[0048] The hydrothermal reaction temperature is 140° C., and other reaction steps are the same as in Example 1.

Embodiment 3

[0050] The hydrothermal reaction temperature is 160° C., and other reaction steps are the same as in Example 1.

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Abstract

The invention provides a NiCuSSe / NF electrode, and a preparation method and application thereof. The preparation method comprises the following steps: preparing a NiCu / NF substrate; preparing a CH4N2Ssolution and a Na2SeO3 solution; mixing the prepared CH4N2S solution with the Na2SeO3 solution to obtain a mixed load precursor solution, transferring the mixed load precursor solution into a hydrothermal reaction kettle, then putting the NiCu / NF substrate into the hydrothermal reaction kettle, sealing the hydrothermal reaction kettle, carrying out a hydrothermal reaction, taking out the reactedsubstrate after the reaction is finished, and sequentially carrying out water washing, alcohol washing and drying treatment to obtain the NiCuSSe / NF electrode. The NiCuSSe / NF electrode prepared by thepreparation method disclosed by the invention has the advantages of large electrochemical active area and low overpotential, is relatively small in resistance to charge transfer in a hydrogen evolution reaction, is relatively high in kinetic rate, and has relatively high hydrogen evolution catalytic activity. The NiCuSSe / NF electrode provided by the invention has a good application prospect in the field of electro-catalytic hydrogen evolution.

Description

technical field [0001] The invention belongs to the technical field of electrocatalytic hydrogen evolution, and relates to a NiCuSSe / NF electrode and its preparation method and application. Background technique [0002] The principle of the electrolysis of water hydrogen production technology is that the electrolysis process occurs in the electrolytic cell. The aqueous solution in the electrolytic cell is reduced to hydrogen at the cathode through electrolysis and oxidized to oxygen at the anode. However, the efficiency of hydrogen production from water electrolysis is low, mainly due to the high overpotential caused by the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in an alkaline environment, resulting in high energy consumption and low efficiency. Therefore, improving the efficiency of hydrogen production by electrolysis of water is a problem that needs to be explored at present. The overpotential refers to the change in the current-generating p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B11/06C25B11/03C25B1/04
CPCC25B1/04Y02E60/36
Inventor 孙强强王建芳曹宝月周春生张国春崔孝炜
Owner SHANGLUO UNIV
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